The energy efficient R420R Nano Lighting system utilizes the latest LED Technology for high performance, high intensity aquarium illumination. This ultra sleek, low profile fixture is designed to blend seamlessly into your living area whether mounted on the tank or suspended. Each fixture features a mix of Cree XLamp, XT-E and XP-E LED chips, topped with 90-degree optics. PAR (Photosynthetic Active Radiation) is optimized for enhanced coral growth and color. This model draws 60W of power, but can out-perform 400w metal halide fixtures.This fixture’s aerodynamic design is both attractive and practical. This profile and the 100 percent aluminum body draws cool air from underneath the fixture, dissipating heat through the chassis. Pre-installed, temperature-controlled fans activate when the temperature rises past 120F. R420R Lighting Systems are user programmable with 2 channels and 6 time-points. Customize the photo-period for your inhabitants and fully control the intensity of light the tank receives throughout the day. The Razor 60W Lighting system is designed to provide all ranges of color spectrum required by corals and plants for enhanced growth rate and magnificent coloration. It includes 4 cool white 8000K LEDs, 2 warm-white 3000K LED’s, 3 blue 465nm-485nm LED’s, 2 royal blue 450nm-465nm LED’s, and 2 super actinic 410nm-420nm LED’s, the spectrum crucial successful Chlorophyll A photosynthesis in nano reefs or planted aquariums. Overall dimensions: 8.6 in.x 10.5 in.x 0.9 in.